Question

One of the zookeepers solved to find Bernard’s speed when he is healthy using the equation:

x – 41.5 = 13.5.

The other zookeeper said that to solve for Bernard’s speed when he is healthy, they must use the equation: 41.5 + 13.5 = x.

Which zookeeper is correct? Explain.

Answer 1

Both zookeepers are correct because they have equivalent equations. Both of the equations will give a healthy speed of 55 km/hr

Explanation:

examples response

Answer 2

Both the zoo-keepers are correct.

Explanation:

The first zoo keeper uses the equation:

x - 41.5 = 13.5

⇒ x = 13.5 + 14. 5 = 55

Now, the second zoo- keeper uses the equation:

41.5 + 13.5 = x

⇒ x = 55

Both use x = 55.